Transcription of BUREAU INTERNATIONAL DES POIDS ET MESURES …
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BUREAU INTERNATIONAL DES POIDS ET MESURES …
Final Report Page 1 BUREAU INTERNATIONAL DES POIDS ET MESURES Comparison of quantum hall effect resistance standards of the PTB and the BIPM on-going comparison Report on the 2013 on-site comparison Final Report July 2014 (1), (1), (1) tz (2) and (2) (1) BUREAU INTERNATIONAL des POIDS et MESURES , Pavillon de Breteuil, S vres, France. (2) Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig, Germany. Final Report Page 2 Comparison of quantum hall effect resistance standards of the PTB and the BIPM On-going comparison 1 Introduction The comparison reported here is part of a BIPM programme to verify the INTERNATIONAL coherence of primary resistance standards by comparing quantum hall effect (QHE) based standards of the national laboratories with that of the BIPM. Five such comparisons have already been carried out in the period 1993 to 1999 with the BNM/LCIE (France) [1], the METAS (Switzerland) [2], the PTB (Germany) [3], the NPL (United Kingdom) [4] and the NIST (USA) [5].
Comparison of Quantum Hall Effect resistance standards of the PTB and the BIPM ... Similarly, K2 is defined as the ratio R100 Ω /R1Ω of the resistance of two standards of nominal values 100 Ω and 1 Ω. The relative difference in the measurements of K2 is expressed as (K2PTB – K2BIPM) ...
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